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CVE-2026-62832

HIGH 7.8 ALL-YEARS

Published 2026-08-11 · Last modified 2026-10-08 · microsoft · NVD: Analyzed

Improper link resolution before file access ('link following') in Windows User Profile Service allows an authorized attacker to elevate privileges locally.

ELEVATED IMPACT

Severe if exploited (CVSS 7.8), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 31st percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

7.8CVSS 3.1 · HIGH · CNA

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ⚠Access: Requires local access to the host
  • ⚠Privileges: Requires a low-privilege account
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Microsoft

Products Windows 10 Version 21h2 Windows 10 Version 22h2 Windows 11 Version 23h2 Windows 11 Version 24h2 Windows 11 Version 25h2 Windows 11 Version 26h1 Windows Server 2022 Windows Server 2025 Windows Server 2025 (Server Core Installation) Windows 10 21h2 Windows 10 22h2 Windows 11 23h2 Windows 11 24h2 Windows 11 25h2 Windows 11 26h1

Weakness (CWE)

  • CWE-59: : Improper Link Resolution Before File Access ('Link Following')

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

References and research data (JSON)

Known Affected Software Configurations

VendorProductVersion range
MicrosoftWindows 10 21h2< 10.0.19044.7663
MicrosoftWindows 10 21h2< 10.0.19044.7663
MicrosoftWindows 10 21h2< 10.0.19044.7663
MicrosoftWindows 10 22h2< 10.0.19045.7663
MicrosoftWindows 10 22h2< 10.0.19045.7663
MicrosoftWindows 10 22h2< 10.0.19045.7663
MicrosoftWindows 11 23h2< 10.0.22631.7517
MicrosoftWindows 11 23h2< 10.0.22631.7517
MicrosoftWindows 11 24h2< 10.0.26100.9168
MicrosoftWindows 11 24h2< 10.0.26100.9168
MicrosoftWindows 11 25h2< 10.0.26200.9168
MicrosoftWindows 11 25h2< 10.0.26200.9168
MicrosoftWindows 11 26h1< 10.0.28000.2704
MicrosoftWindows 11 26h1< 10.0.28000.2704
MicrosoftWindows Server 2022< 10.0.20348.5499
MicrosoftWindows Server 2025< 10.0.26100.33296

All CVSS metrics

  • HIGH 7.8 v3.1 · CNA Primary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
  • HIGH 7.8 v3.1 · NVD Secondary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Patches & mitigations

Advisories

Sources: NVD · CVE.org · All sources and attribution · EPSS